Synonyms for Verifiable (same or very similar meaning)
WordNet sense 1 (undistorted by emotion or personal bias; based on observable phenomena):
objective, nonsubjective
WordNet sense 2 (capable of being tested (verified or falsified) by experiment or observation):
confirmable, falsifiable
WordNet sense 3 (derived from experiment and observation rather than theory):
empirical, empiric
From the ODE community, based on WordNet
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